Hi mariam mahmoud hayek,
Thank you for contacting us through the Microsoft Q&A forum. Based on our understanding of the issue, you are practicing the following Learning Path:
Topic: AZ-900
Learning Path: Microsoft Azure Fundamentals: Describe cloud concepts - Training | Microsoft Learn
Module: Describe cloud computing - Training | Microsoft Learn
Unit 3: What is cloud computing - Training | Microsoft Learn
We can affirm that the video is operational, as illustrated in the screenshot provided for your reference:
As a workaround, please follow these troubleshooting steps to resolve the issue:
Step 1: Sign out from all tabs in the current browser and clear the cache files. Then, try logging in again with your Learn ID credentials.
Step 2: Sign out from the current browser session and try logging in again using an incognito window or in-private window.
Step 3: Switch to a different browser and attempt to log in again.
Step 4: Log in with a new personal email account into the learning path in a completely new browser and check if the issue persists.
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Thank you.